STANDLEY TREES AND SHRUBS OF MEXICO. 473 



Slender shrub, 0.6 to 2 meters high; leaflets about 17, narrowly oblong; 

 flowers pinkish. 



10. Cracca cuernavacana Rose, Contr. U. S. Nat. Herb. 12: 269. 1909. 

 Known only from the type localitj', wooded slopes of barranca above Cuerna- 



vaca, Morelos, altitude 1,800 meters. 



Slender suffrutescent plant, 0.6 to 1 meter high ; leaflets oblong, obtuse, 

 bright green ; flowers 1.5 cm. long. 



11. Cracca tepicana Standi. Contr. U. S. Nat. Herb. 20: 217. 1919. 

 Known only from Tepic, the type locality. 



Leaflets oblong or oval-oblong, obtuse, green ; flowers 1.5 cm. long. 



12. Cracca langlassei (Micheli) Rose, Contr. U. S. Nat. Herb. 12: 270. 1909. 

 Tephrosia hmglassei Micheli, Mem. Soc. Phys. Hist. Nat. Geneve 34: 250. 



pi. 3. 1903. 



Jalisco to Oaxaca ; type from the Sierra Madre of Michoacan or Guerrero. 



Plants copiously pubescent ; leaflets oblong-ovate, 3 to 6 cm. long ; flowers 

 1.5 cm. long. 



The specimens from Jalisco are slightly different from the more southern 

 plant, and may represent a difterent species. 



13. Cracca seemanni Britten & Baker, Journ. Bot. Brit. & For. 38:17. 1900. 

 Sinaloa and perhaps elsewhere; type from somewhere in the Sierra Madre. 

 Plants suffrutescent, with purplish flowers. " Gallitos " (Sinaloa). 



This has been reported from Mexico as Tephrosia virginiana (L.) Pers. 



14. Cracca submontana Rose, Contr. U. S. Nat. Herb. 8: 46. 1903. 



Sinaloa and Tepic ; type collected between Pedro Paulo and San Blascito, 

 Tepic. 



Leaflets coriaceous, bright green on the upper surface and scaberulous ; 

 flowers about 2.5 cm. long. 



15. Cracca talpa (S. Wats.) Rose, Bot. Gaz. 40: 143. 1905. 

 Tephrosia talpa S. Wats. Proc. Amer. Acad. 22: 405. 1887. 



Sinaloa and Durango to Veracruz and Oaxaca ; type from Rio Blanco, Jalisco. 



Plants herbaceous or suffrutescent ; leaflets oblong or oval, 2 to 6 cm. long, 

 densely sericeous ; flowers pink, 1.5 to 2 cm. long. 



This species is clo.sely related to C. toxicaria, but has much broader, thicker 

 fruit, and the leaflets are usually proportionally broader. 



16. Cracca macrantha (Robins. & Greenm.) Rose, Bot. Gaz. 40: 143. 1905. 

 Tephrosia. macrantha Robins. & Greenm. Proc. Amer. Acad. 2&: 383. 1894. 

 Jalisco to Guerrero ; type from Tequila. Jalisco. 



Slender shrub, 2.5 to 3.5 meters high ; leaflets oblong, 2 to 4 cm. long; flowers 

 large, white or pink, in long racemes. 



17. Cracca leucantha (H. B. K.) Kuntze, Rev. Gen. PI. 1: 175. 1891. 

 Tephrosia leucantha H. B. K. Nov. Gen. & Sp. 6: 460. pi. 577. 1823. 

 Tephrosia leucantha acuta Jones, Contr. West. Bot. 12: 7. 1908. 

 Chihuahua and Sonora to Guanajuato ; type collecte<l near Guanajuato. 

 Plants suffrutescent ; leaflets numerous, oblong or narrowly oblong ; flowers 



greenish white or pinkisli ; fruit 3 to 5.5 cm. long, 4 to 5 mm. wide. 



18. Cracca toxicaria (Pers.) Kuntze, Rev. Gen. PI. 1: 175. 1891. 

 Tephrosia toxicaria Pers'. Syn. PI. 2: 328. 1807. 



Tephrosia multifolia Rose, Contr. U. S. Nat. Herb. 1: 320. 1895. 

 Cracca multifolia Rose, Contr. U. S. Nat. Herb. 12: 270. 1909. 

 Sinaloa to Zacatecas and Oaxaca. Central America, West Indies, and South 

 America. 



